@article{TIMM_2017_23_3_a23,
     author = {R. M. Trigub},
     title = {On multiply monotone functions.},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {257--271},
     year = {2017},
     volume = {23},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2017_23_3_a23/}
}